1080p HD video doorbell that lets you see, hear and speak to people from your phone, tablet, or select Echo device. Get notifications whenever motion is detected by customizing your motion zones. With Live View, you can check in on your home any time through the Ring app. Easily setup your Ring Video Doorbell Pro by connecting to wifi via the Ring app and mounting in your desired location. Connects to existing doorbell wiring for constant power. Requires a transformer (not included): 16-24VAC, 40VA max, 50/60Hz. No halogen or garden lighting transformers; no DC transformer/power supply. With a Ring Protect Plan (subscription sold separately), record all your videos, review what you missed for up to 60 days, and share videos and photos. Connect your Ring doorbell with Alexa to hear announcements on your compatible Echo device when your doorbell is pressed and see a live view of your camera if you have an Echo device with a screen. Talk to visitors by saying “Alexa, talk to the front door.